DECT RF IC for non-blind-slot operation
9 May 2001
Telecoms, Datacoms, Wireless, IoT
Atmel's transceiver IC, the T2801, is a flexible solution for a wide range of DECT data and voice applications such as residential cordless phones, WPBX1, WLL2 and WLAN3.
The T2801 includes image rejection mixer, IF amplifier, FM demodulator, baseband filter, RSSI, transmitter amplifier power ramping generator for the power amplifier, integrated synthesizer and voltage-controlled oscillator. The on-chip transmitter filter (with a modulation compensation circuit for advanced closed loop modulation) and a very fast phase-locked loop settling time, enable non-blind-slot operation.
Up to 12 slots in each direction can be used, whereas conventional solutions provide only up to four. This feature allows the use of up to 12 handsets with the same basestation. Non-blind-slot operation also offers higher data transmit bit rates which is especially important for fast data download (wireless internet access) and fast data transfer to printers (WLAN).
The universal transceiver-to-baseband interface can be used along with any major DECT baseband IC since the transceiver is suitable for both 13 824 MHz and 10 368 MHz clock reference frequency. This DECT transceiver is completely alignment-free.
Atmel SA
(012) 332 0583
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